IBM eserver pSeries 690, User Manual

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Default Performance Mode: Large Commercial System optimization
1. Current Performance Mode:
Large Commercial System optimization
98. Return to Previous Menu
0>1
Selecting option 1 displays the following performance modes:
Select from the following options:
1. Large Commercial System optimization
2. Standard Operation
3. Turbo Database Mode
0>
Notes:
1. Some MCM configuration changes, such as going from an 8-way to a 24-way
system, will cause the default performance mode to change. This new setting will
not be reflected in the menu until after the system is rebooted with the new
configuration.
2. If the NVRAM has been cleared, the default performance mode and the current
performance mode will indicate
uninitialized
.
To override the default setting, a brief description of each performance mode follows:
– Large commercial system optimization is the setting for systems that do not fall
into the other two categories, standard operation and turbo database mode. This
setting provides the best performance for most applications.
– Standard operation optimizes the system for large memory bandwidth applications
where minimal sharing of data occurs and the likelihood of significant hardware
data-prefetching exists.
– Turbo database mode optimizes system operation for environments where there is
a large amount of data sharing among processes running concurrently on the
system.
Language Selection Menu
The service processor menus and messages are available in various languages. This
menu allows selecting languages in which the service processor and system firmware
menus and messages are displayed.
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Eserver
pSeries 690 User’s Guide